A method of the simulation credibility analysis of ship electric propulsion system

Abstract

Electric propulsion system is a new type of propulsion system which is widely used in lots of fields. This paper puts forward a kind of analysis method based on the technology of VV&A to test the credibility of electric propulsion system simulation, which uses VV&A as the principle and FDAHP as the main method of constructing assessment system, combines the quantitative analysis and qualitative analysis used in the assessment index of assessment, finally gets the whole system credibility analysis, and then an ship electric propulsion system simulation example is used to prove that the method is verified. I. INT RODUCTION Electric propulsion system as a new type of propulsion system, has been widely used in aerospace, marine, land transportation and other fields, with many advantages such as high efficiency, strong maneuverability, environmental protection, etc. But it is too expensive to test a large electric propulsion system when it actually runs, people often use the technology of the simulation to solve this problem. Because of that, the credibility of the simulation results compared with the actual system is also very important, it relates to the vitality of the whole simulation system relative to the actual system and the value and significance of the simulation results. Therefore, the development of the credibility analysis technology of electric propulsion system simulation is also more important. According to electric propulsion system simulation, this paper introduced a method of simulation credibility analysis, which uses the FDAHP (fuzzy dynamic analytic hierarchy process) as the main method of constructing assessment system, combines qualitative method and quantitative method to analyze the index credibility of the system simulation process and simulation results, finally get the credibility analysis of electric propulsion system simulation results.